2x2 Eppendorf tube racks

After seeing my colleagues melting a couple of these racks printed in PETG by locating them in a 95 degree thermostat, I've also added a version with easily readable maximum temperature label.

Printing parameters for the nice finish:

15-25% gyroid infill, 3-4 walls, 0.6-0.8 mm bottom thickness, 0.8-1.4 mm top thickness (the latter depends on the infill density).

For the versions with marked temperatures I'd recommend using the following common materials:

Max 70 degrees - PETG

Max 90 degrees - HIPS or ABS

Max 100 degrees - ABS